Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems

D.M. Watts, C.J. Sutcliffe, R.H. Morgan, R.A. Black, S. Meagher, J. Wardlaw, M Connel, P. Hoskins

    Research output: Contribution to conferencePaper

    Abstract

    Cardiovascular diseases are responsible for over 50% of all deaths in the UK. Current measurement techniques involve non-invasive Doppler ultrasound imaging of blood velocity, however it is known that measured velocity may be in error by typically 20-60%. This paper presents the development of anatomically correct tissue equivalent vessels for calibration of Doppler ultrasound by particle imaging techniques. Patient specific arterial MRI data is used as the basis for construction of a 3D CAD model. The model was modified to simulate varying degrees of stenosis (narrowing). The arterial geometry is fabricated by Stereolithography to generate investment cast patterns from low melting point alloy. The expendable cores are then used in the construction of optically transparent models for particle image velocimetry (PIV) analysis and for agar models using an acoustically matched tissue mimic material for Doppler ultrasound measurement. Issues concerning the fabrication of models for direct comparison of Doppler and PIV data will be discussed.
    Original languageEnglish
    Pages13-21
    Number of pages9
    Publication statusPublished - Jun 2003
    Event4th National Conference on Rapid and Virtual Prototyping and Applications - Chalfont St Giles, United Kingdom
    Duration: 19 Jun 200320 Jun 2003

    Conference

    Conference4th National Conference on Rapid and Virtual Prototyping and Applications
    CountryUnited Kingdom
    CityChalfont St Giles
    Period19/06/0320/06/03

    Fingerprint

    Ultrasonics
    Calibration
    Velocity measurement
    Tissue
    Stereolithography
    Imaging techniques
    Electric current measurement
    Magnetic resonance imaging
    Melting point
    Computer aided design
    Blood
    Fabrication
    Geometry

    Keywords

    • vascular
    • stereolithography
    • CAD
    • stenosis
    • phantom
    • development
    • anatomical carotid artery flow
    • calibration
    • doppler ultrasound systems

    Cite this

    Watts, D. M., Sutcliffe, C. J., Morgan, R. H., Black, R. A., Meagher, S., Wardlaw, J., ... Hoskins, P. (2003). Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems. 13-21. Paper presented at 4th National Conference on Rapid and Virtual Prototyping and Applications , Chalfont St Giles, United Kingdom.
    Watts, D.M. ; Sutcliffe, C.J. ; Morgan, R.H. ; Black, R.A. ; Meagher, S. ; Wardlaw, J. ; Connel, M ; Hoskins, P. / Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems. Paper presented at 4th National Conference on Rapid and Virtual Prototyping and Applications , Chalfont St Giles, United Kingdom.9 p.
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    abstract = "Cardiovascular diseases are responsible for over 50{\%} of all deaths in the UK. Current measurement techniques involve non-invasive Doppler ultrasound imaging of blood velocity, however it is known that measured velocity may be in error by typically 20-60{\%}. This paper presents the development of anatomically correct tissue equivalent vessels for calibration of Doppler ultrasound by particle imaging techniques. Patient specific arterial MRI data is used as the basis for construction of a 3D CAD model. The model was modified to simulate varying degrees of stenosis (narrowing). The arterial geometry is fabricated by Stereolithography to generate investment cast patterns from low melting point alloy. The expendable cores are then used in the construction of optically transparent models for particle image velocimetry (PIV) analysis and for agar models using an acoustically matched tissue mimic material for Doppler ultrasound measurement. Issues concerning the fabrication of models for direct comparison of Doppler and PIV data will be discussed.",
    keywords = "vascular, stereolithography , CAD, stenosis, phantom, development, anatomical carotid artery flow, calibration, doppler ultrasound systems",
    author = "D.M. Watts and C.J. Sutcliffe and R.H. Morgan and R.A. Black and S. Meagher and J. Wardlaw and M Connel and P. Hoskins",
    year = "2003",
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    note = "4th National Conference on Rapid and Virtual Prototyping and Applications ; Conference date: 19-06-2003 Through 20-06-2003",

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    Watts, DM, Sutcliffe, CJ, Morgan, RH, Black, RA, Meagher, S, Wardlaw, J, Connel, M & Hoskins, P 2003, 'Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems' Paper presented at 4th National Conference on Rapid and Virtual Prototyping and Applications , Chalfont St Giles, United Kingdom, 19/06/03 - 20/06/03, pp. 13-21.

    Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems. / Watts, D.M.; Sutcliffe, C.J.; Morgan, R.H.; Black, R.A.; Meagher, S.; Wardlaw, J.; Connel, M; Hoskins, P.

    2003. 13-21 Paper presented at 4th National Conference on Rapid and Virtual Prototyping and Applications , Chalfont St Giles, United Kingdom.

    Research output: Contribution to conferencePaper

    TY - CONF

    T1 - Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems

    AU - Watts, D.M.

    AU - Sutcliffe, C.J.

    AU - Morgan, R.H.

    AU - Black, R.A.

    AU - Meagher, S.

    AU - Wardlaw, J.

    AU - Connel, M

    AU - Hoskins, P.

    PY - 2003/6

    Y1 - 2003/6

    N2 - Cardiovascular diseases are responsible for over 50% of all deaths in the UK. Current measurement techniques involve non-invasive Doppler ultrasound imaging of blood velocity, however it is known that measured velocity may be in error by typically 20-60%. This paper presents the development of anatomically correct tissue equivalent vessels for calibration of Doppler ultrasound by particle imaging techniques. Patient specific arterial MRI data is used as the basis for construction of a 3D CAD model. The model was modified to simulate varying degrees of stenosis (narrowing). The arterial geometry is fabricated by Stereolithography to generate investment cast patterns from low melting point alloy. The expendable cores are then used in the construction of optically transparent models for particle image velocimetry (PIV) analysis and for agar models using an acoustically matched tissue mimic material for Doppler ultrasound measurement. Issues concerning the fabrication of models for direct comparison of Doppler and PIV data will be discussed.

    AB - Cardiovascular diseases are responsible for over 50% of all deaths in the UK. Current measurement techniques involve non-invasive Doppler ultrasound imaging of blood velocity, however it is known that measured velocity may be in error by typically 20-60%. This paper presents the development of anatomically correct tissue equivalent vessels for calibration of Doppler ultrasound by particle imaging techniques. Patient specific arterial MRI data is used as the basis for construction of a 3D CAD model. The model was modified to simulate varying degrees of stenosis (narrowing). The arterial geometry is fabricated by Stereolithography to generate investment cast patterns from low melting point alloy. The expendable cores are then used in the construction of optically transparent models for particle image velocimetry (PIV) analysis and for agar models using an acoustically matched tissue mimic material for Doppler ultrasound measurement. Issues concerning the fabrication of models for direct comparison of Doppler and PIV data will be discussed.

    KW - vascular

    KW - stereolithography

    KW - CAD

    KW - stenosis

    KW - phantom

    KW - development

    KW - anatomical carotid artery flow

    KW - calibration

    KW - doppler ultrasound systems

    M3 - Paper

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    ER -

    Watts DM, Sutcliffe CJ, Morgan RH, Black RA, Meagher S, Wardlaw J et al. Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems. 2003. Paper presented at 4th National Conference on Rapid and Virtual Prototyping and Applications , Chalfont St Giles, United Kingdom.